Cheap flights from Chiang Mai to Koh Samui

View AU$315 flight on Thu, 13 Nov. 2025Opens in a new window

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Cheap Flights from Chiang Mai (CNX) to Koh Samui (USM)

Prices were available within the past 7 days for one-way flights and round trip tickets for the period specified. Prices and availability are subject to change. Additional terms apply.

Bangkok Airways
Thu., 18 Sep. - Thu., 25 Sep.
CNX
Chiang Mai
USM
Koh Samui
AU$637 Return, found 1 day ago
AU$637
Return
found 1 day ago
Select Bangkok Airways flight, departing Thu., 18 Sep. from Chiang Mai to Koh Samui, returning Thu., 25 Sep., priced at AU$637 found 1 day ago
Bangkok Airways
Thu., 18 Sep. - Thu., 25 Sep.
CNX
Chiang Mai
USM
Koh Samui
AU$653 Return, found 1 day ago
AU$653
Return
found 1 day ago
Select Bangkok Airways flight, departing Thu., 18 Sep. from Chiang Mai to Koh Samui, returning Thu., 25 Sep., priced at AU$653 found 1 day ago
Bangkok Airways
Thu., 20 Nov. - Sat., 22 Nov.
CNX
Chiang Mai
USM
Koh Samui
AU$654 Return, found 21 hours ago
AU$654
Return
found 21 hours ago
Select Bangkok Airways flight, departing Thu., 20 Nov. from Chiang Mai to Koh Samui, returning Sat., 22 Nov., priced at AU$654 found 21 hours ago
Bangkok Airways
Sun., 25 May - Wed., 28 May
CNX
Chiang Mai
USM
Koh Samui
AU$656 Return, found 3 days ago
AU$656
Return
found 3 days ago
Select Bangkok Airways flight, departing Sun., 25 May from Chiang Mai to Koh Samui, returning Wed., 28 May, priced at AU$656 found 3 days ago
Bangkok Airways
Thu., 20 Nov. - Sat., 22 Nov.
CNX
Chiang Mai
USM
Koh Samui
AU$658 Return, found 21 hours ago
AU$658
Return
found 21 hours ago
Select Bangkok Airways flight, departing Thu., 20 Nov. from Chiang Mai to Koh Samui, returning Sat., 22 Nov., priced at AU$658 found 21 hours ago
Bangkok Airways
Thu., 18 Sep. - Thu., 25 Sep.
CNX
Chiang Mai
USM
Koh Samui
AU$659 Return, found 1 day ago
AU$659
Return
found 1 day ago
Select Bangkok Airways flight, departing Thu., 18 Sep. from Chiang Mai to Koh Samui, returning Thu., 25 Sep., priced at AU$659 found 1 day ago
*Available to Expedia members.